Vapor-burning street-lamp.



No. 690,237. Patented nec. 3|, |901.

u. c. cammen.

VAPOR BURNING STREET LAMP.

(Application ld June 12, 1901.)

3 Sheets-Sheet I.

(No Model.)

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YM: 'norms P Urns c Puumuwo., wismamn, uA c,

J. C. CRANIGER.

VAPOR BURNING STREET LAMP.

(Application led June 12, 1901.) (No Model.) 3 Sheets-Sheet 2.

No. 690,237. a Patented nec. 3|, Ism.

nu. 690,237. Patented uw. 3|, 490|. .1. c. cammen.

VAPUR BURNING STREET LAMP.

(Application med June 12, 1901.)

UNITED STATES* PATENT C)trici-L".

JAMES C. CRANIGER, OF KANE, PENNSYLVANIA.

VAPOR-BURNING STREET-LAM P.

SPECIFICATION 'orming part'of Letters Patent N o. 690,237, dated December 31, 1901.

Application filed June 12,1901,

'T0 all whom, it may concern,.-

Be it known that I, J AMES C. CRANIGER, a 'citizen of the United States, residing at Kane, in the county of McKean and State of Pennsylvania, have invented new and useful Improvements in Vapor-Burning Street-Lamps, 'of which the following is a specification.

My invention relates to liquid-fuel streetilamps; and the objects of the same are to construct a lamp of this character which will be simple in construction and economical and Iefficient in operation. To accomplish this, I have provided, first, an improved vaporizingcoil; second, an auxiliary burner for heating said coil while the main burner-is out and for relighting the same; third, an automatic means for cutting oif and relighting either of the burners, and, fourth, an improved shade 'to protect the lamp from wind and snow.

The novel construction by which these improvements are carried out is fully described in this specification and claimed, and illustrated inthe accompanying drawings, forming a part thereof, in which- Figure 1 is an elevation,partially in section, of my lamp and shade. Fig. 2 is a vertical longitudinal section of the'same. Fig. 3 is a 'diagrammatic view showing my lamp mount- 'ed on a post and the tank for holding a supply of gasolene. Fig. 4 is a detail vertical section of the Valve.' Fig. 5 is a detail plan 'of the same. Fig. 6 is adetail horizontal section of the same.

Like numerals of reference designate like vparts in the different views of the drawings.

The numeral 1 designates a tank for containing a supply of gasolene or other light loil under pressure, which pressure is maintained by forcing a supply of air into a pipe 2, supplied with a valve 2a. A supply-pipe 3 passes through'the top of tank 1 and down to within a short distance of the bottom. The feed-pipe 3 is of small size and extends up to a lamp 4, suspended from a bracket 4, secured to a lamp-post 6 of ordinary coni struction. The parts of the lamp 4 are supported bya frame @which comprises side bars 6 and 7 connected by cross-bars 8 and 9 and an intermediate cross-bar 10.

The intermediate cross-bar 10 is made in four sections,'a middle hollow section 10a and a solid section'glO", a perforated section 10c, and

Serial No. 64.280. (No model.)

a hollow section 10d. The section 10d is made of pipe and is connected to the side bar 6, which is also made of pipe, plugged at its upper end at 11 and connects with a vertical burner-pipe 12. The section 10a serves as a vapor or vaporizing chamber and is provided with a casing 10e, fitted therein and having thereon a series of graduated steps 10"f to prevent the How of liquid gasolene therethrough and retain it till'vaporized. r1`he perforated member 10c forms an air-mixing chamber. The bar 10 serves to support a vaporizingcoil 13, consisting of two coils 13IL and 13", made of large and small pipe, respectively, wound conical and parallel to each other, thereby forming a truste-conical coil open at both ends. The large pipe is about one-half an inch in diameter and the small pipe about one-eighth of an inch. The coils 13a and 13b are made continuous by joining the upper ends of the large and smallcoils. The lower end of the small coils 13b is connected at 13c to the section 10.

The large end of vthe coil 13 is about four inches in diameter and opens downward directly over a burner to be described.v The vertex of the conical coils is open, and mounted within this opening is an auxiliary heating-burner 14.

The burner 14 is designed to be kept lighted while the main burner is out and to ignite the main burner. Means for automatically lighting and shutting off the burner will be hereinafter described. The auxiliary burner 14 is constructed of a perforated tip 15, mounted -coil 18 is formed in the pipe 16 and surrounds the casing. This arrangement increases the heating of the gasolene before passing to the burner 14 after it is once under headway.

The main burner is designated by the numeral 19 and is detachably connected to-the burner-pipe 12. The burner 19 has a wiregauze 20, which is covered by a mantle 21, suspended'from an arm 2l. An air-shield 22 and arms 23 for supporting a chimney are mounted on the burner 19. The burner 19 is located directly under the coil 13, and thus serves to heat it and vaporize the gasolene before it reaches the burner. A pipe 23 is con- IOO nected to the frame just beneath the burner 19 and forms a trap to catch the refuse from the burner.

Two burners have now been described which have been termed the main burner 19 and the auxiliary burner 14. The main burner is connected to the coils 13 through the me-v dium of the side bar 6 of the frame 5, while the auxiliary burner is provided with its own heating-coil 1S.

To regulate the flow of gasolene from the reservoir 1 to the burners, a two-way valve is connected tothe feed-pipe 3. This valve has a casing 24, in which, mounted to turn, is a conical valve 25, having ports 26, 27, and 28, designed to makel connections with passage 26, 27, and 28, respectively, in the casing 2i. The port 26 is wide enough to communicate with the passage 26L when either of the other ports 26 or 27 are connected with their corresponding passages. The ports 27 and 28 are so arranged that both can make partial connections at the same time. This corresponds to the time when the oil is flowing to both burners, as will appear. The valve 25 is provided with a lever-arm 29 for operating it. The passages 26, 271i, and 28 are connected to the feed-pipe 3, the pipe 16, leading to the auxiliary burner, and a pipe 30, connected to the lower end of the large coil 13'-. By this arrangement it is evident that in the extreme position of the lever 29 gasolene will be supplied to one burner, but at the intermediate position it will be supplied to both.

The lever 29 maybe operated by means of pendent wires; but for street-lighting an automatic device for turning it on and off is a great convenience. For this purpose a mechanism now to be described is provided.

A disk 3l is mounted vertically on a longitudinal shaft, which is the hour-hand sleeve of a clock 32 of ordinary construction. By this means the disk 31 is revolved once every twenty-four hours. The face 33 of the disk 31 is composed of twenty-four detachable sections of three different kinds. The sections of the rst class are designated 33"t and are each cut by a circular groove 34: of large radius and subtending fifteen degrees. The second class of sections are designated 33b and have grooves 34h thereon subtending an arc of iifteen degrees each, but of smaller radius. The third class of segments 33c con sist of two members which are cut by diagonal grooves 34C, which serve to connect the grooves 34 and 340. These sections are set, as shown, with the grooves 34:, 34D, and 31 forming one continuous groove. The number of each of the series 33*L and 33 may be changed, depending on the time the lightis to be lighted but there are always two sections 33C. The lever 29 is set to engage the grooves 3i in the disk 31, which on turning will operate it. W'hen the lever is engaged by the groove 34 the gasolene will be flowing to the main burner 19, when it is engaged by the groove 349 gasolene will be flowing to the auxiliary burner 14, and when it is engaged by the diagonal grooves 34C gasolene will be iiowingto both burners and one can light the other.

A cylindrical casing 35 is placed around the coils 13 and serves to confine the heat and to protect thev valve 24 and clock 34 therefrom. To provide an additional protection, a double circular sloping roof 35' is suspended from the bar 10. 35b of the roof 35 is apertured in the center and is parallel and separate from the lower layer 35C, which is apertured in the center and perforated. The upper roof 35D bears a downwardl y-extendin g pi pe 35, which passes through the aperture in the lower roof 35c and fits snugly the burner-chimney. Fitting snugly over the roof 35 is a dome-shaped metal shade 36, apertured at 37 and provided with a cover 38. A pair of concentric parallel perforated disks 39 are mounted just below the burner 19 and serve to support an inverted-bell-shaped shade 40, which extends up and has its upper edge covered by the roof 35. By this combination of the roof 35a, shade 36, and shade 40 the heat of the burner is confined and directed against coils 13 and pipe 10 and the gasolene completely vaporized.

In operation the tank 1 is half filled with gasolene and air pumped in until a pressure of from twenty to forty pounds is obtained. The valve 24 is then set to admit gasolene to the auxiliary burner 14, which is then lighted. The flame from this burner will soon heat the Asmall coil 18, and the burner will give o a pale blue flame, which will be directed by the casing 17 against the coils 13a and 13", heating them. The lever 29 is now set at its intermediate position and gasolene admitted to both burners. the burner 24through the pipe 30 into the large coils of large pipe 13 at the bottom of the coil 13, thenthrough this pipe to the top of the coil, then into the coils of small pipe 13b, down through this pipe to the bottom of the coil, after which it will pass on through the pipe 10a and become mixed with air, after which it will go to the burner 19. As soon as the gasolene vapor reaches the burner 19 the flame from the burner 14 will light the burner 19. The flame from the burner. 19 will then heat the coils 13 to a very high temperature, which will insure the complete vaporizing of the gasolene and produce a very bright clear light. After the lighting of the burner 19 the gasolene is completely cut olf from the burner 14C by means of the lever 29. When it is desired to extinguish the burner 19, the lever is set at its intermediate position until the burner 14 is lighted by the flame of 19, after which the gasolene is cut off from the large burner. The flame. of the small burner will keep the coils 13 hot, so there need be no delay in relighting the burner 19. If the clock is employed, the diagonal grooves of the disk 3l will insure a supply The upper layer A IOO ICS

The gasolene will ilow from IIO of gasolene to both burners long enough for one to light the other.

The perfrated roof c fits closely the shade l4:0; but the perforations therein permit the escape of the heated air and keep the shade cool, so that snow or rain in striking it will not cause breakage.

I do not wish to be limited as to details of construction, as these may be -modied in many particulars without departing from the spirit of my invention.

Having described my invention, what I claim as new, and wish to secure by Letters Patent, is-

l. In a device of the class described, the combination with a burner provided with a feed-pipe, of a frusto-conical coil located iinmediately over said burner, large end down,

and connected to said feed-pipe, a vaporizingchamber extending transversely the large end of said coil, an auxiliary burner located directly over said burner within the small end of said coil, and constructed to provide a flame to heat said coils and said vaporizin gchamber and to be ignited by said burner and to ignite the same, substantially as described.

2. In a device of the class described, the combination with a burner provided with a feed-pipe, of a conical coil comprising coils of larger and smaller pipe and located immediately over said burner, large end down, and connected to said feed-pipe, and an auX- iliary burner comprising a pipe coiled around and connected to an open-mouthed casing located within the small end of said coil and directed downwardly, substantially as described.

3. In a device of the class described, the combination with a burner provided with a feed-pipe, of a conical coil formed of a plurality of coils of large and small pipe, said coil being located immediately over said burner, a vaporizing chamber extending transversely said coil and connected to the 4. A vaporiz'ing-coil comprising a plurality of coils of large pipe, a plurality of coils of smaller pipe wound on the outside of said coils of large pipe, substantially as described.

5. In a device of the class described, the combination with a two-way valve provided with a lever and connected to a feed-pipe, of a burner, a coil located over said burner and connected to said two-way valve and to said burner, an auxiliary burner connected to said valve and located to heat said coil and to be lighted by said first-mentioned burner,a disk provided with a groove engaging said lever, and means for revolving said disk, sub; stantially as described.

6. In a device of the class described, the combination with a burner provided with a chimney, of a perforated disk mounted beneath said burner, a shade resting on said disk, a centrally-apertured, sloping, perforated lower roof resting on said shade, an upper sloping roof bearing a pipe which eX- tends through the aperture in said lower roof and fits over said chimney, and a shade fitting over said upper root', substantially as described.

7. In a device of the class described, the' combination with a burner 0i' a vaporizing; coillocated over said burner and connected at one end to a feed-pipe, a vaporiz'ing-chamber provided with a graduated series of steps and connected to the other end of said coil, and an air-mixing chamber connected to said vaporizingchamber, substantially as described. p

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses. Y

JAMES o. GRANIGER. Witncsses BENNETT S. JONES, FRANK G.^RADELEINGER. 

